Medicare Home Health Compare
Home Health Compare gives detailed information about Medicare-certified home health agencies that were certified as of January 2003. New home health agencies may not appear for several months after being approved by Medicare. Although this is written for Medicare patients it is still a good way to search for home health providers.
Web Site

Medicare and Home Health Care (PDF)
Medicare and Home Health Care is designed to help people find and compare home health agencies. It can help you and your family choose the agency that is best for you. It includes important information about eligibility for Medicare coverage of home health care, what Medicare does and doesn’t cover, quality of care, and resources for more information.

Although this is written for Medicare patients it provides a good explanation of home health services.
PDF